New anti-inflammatory steroids from the Formosan soft coral Clavularia viridis

Four new steroids, stoloniferones R–T (1–3), and (25S)-24-methylenecholestane-3β,5α,6β-triol-26-acetate (4) were isolated from the methylene chloride solubles of the soft coral Clavularia viridis. The structures of the metabolites were elucidated by extensive spectral analysis and their anti-inflammatory activity was measured in vitro.